| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 4 | |
| #2 | Austria | 1 | |
| #3 | Belgium | 1 | |
| #4 | Switzerland | 1 | |
| #5 | France | 1 | |
| #6 | Italy | 1 | |
| #7 | Japan | 1 | |
| #8 | Mexico | 1 | |
| #9 | Netherlands | 1 | |
| #10 | Sweden | 1 | |
| #11 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Electric switches | |
| #3 | Unspecified technologies | |
| #4 | Pumps | |
| #5 | Rotary-pistons |
| # | Name | Total Patents |
|---|---|---|
| #1 | Spohr Hanswerner | 7 |
| #2 | Hansuberunaa Supooru | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4276903A | Control valve | |
| DE2729063A1 | Liq. control valve system - fits in cylindrical bore and has seal rings in casing and on valve seat | |
| DE2723309A1 | Liq. control valve system - fits in cylindrical bore and has seal rings in casing and on valve seat | |
| DE2721996A1 | Gear pump with variable displacement per revolution - has relative axial adjustment of meshing gears and corresponding meshing inserts | |
| DE2720134A1 | Hydraulic pump for supplying main pump or motor - has swash plate arranged on common shaft between drive and main unit |